＊R5511D
(SON-6) and R5511H (SOT-89-5) are the discontinued product. As of March in 2015.
R5511x SERIES
LDO REGULATOR WITH RESET
NO.EA-111-140530
OUTLINE
The R5511x Series are CMOS-based voltage regulator (LDO) ICs equipped with a voltage detector (VD). LDO
function of the R5511x has features of high ripple rejection, low dropout voltage, high output voltage accuracy,
and low supply current. Each of these ICs consists of a voltage reference unit, an error amplifier, resistors for
setting output voltage, a current limit circuit, a voltage detector, and a chip enable circuit. The output of built-in
voltage detector is Nch open drain type. (With the mask option CMOS output type is also available.)
The output voltage and the detector threshold voltage are fixed in the IC. Low supply current by the merit of
CMOS process and the built-in transistor with low ON-resistance make low dropout voltage. These regulators in
the R5511x Series are remarkable improvement on the current regulators in terms of ripple rejection, input
transient response, and load transient response. Furthermore, the R5511x series can supervise input voltage
(the input voltage means the input level for V
DD
or V
SENSE
pin) with built-in detector. Thus, the R5511x series are
suitable not only for cellular handsets but also for power supply for CD-drives, DVD-drives, and so forth.
Since the packages for these ICs are the SON-6, SOT-23-5, SOT-89-5 package, high density mounting of the
ICs on boards is possible.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
Supply Current ..................................................................... Typ. 50µA
Standby Current ................................................................... Typ. 1.5µA
Ripple Rejection ................................................................... Typ. 75dB (f=1kHz)
Output Current ..................................................................... Min. 300mA
Output Voltage Range .......................................................... 1.2V to 4.0V
Output Voltage Accuracy......................................................
±1.5%
(V
OUT
≥ 2.0V)
Dropout Voltage ................................................................... Typ. 0.1V (V
OUT
=2.8V,
I
OUT
=100mA)
Detector Threshold Range ................................................... 1.2V to 5.0V
Detector threshold Accuracy ................................................
±1.5%
(V
OUT
≥ 2.0V)
Low Temperature-drift Coefficient of Output Voltage ........... Typ.
±100ppm/°C
Absolute Maximum Voltage ................................................. 6.5V
Packages ............................................................................ SON-6, SOT-23-5, SOT-89-5
Output Delay Time (t
delay
) .................................................... A: (t
delay
=1ms,
Hysteresis5%)
B: (t
delay
=20ms,
Hysteresis5%)
C: (t
delay=
60ms, Hysteresis5%)
D: (t
delay=
240ms, no Hysteresis)
∗Output
Delay Time : 120ms / With or without hysteresis can be designated with user’s request
•
Ceramic capacitors are recommended to be used with this IC ..... 1µF or more
•
Built-in Fold-back Protection Circuit
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APPLICATIONS
•
CD-drives and DVD-drives
•
Power source for Cellular Phone
1
＊R5511D
(SON-6) and R5511H (SOT-89-5) are the discontinued product. As of March in 2015.
R5511x
BLOCK DIAGRAMS
R5511xxxxxA
(V
IN
detect Nch Open drain)
R5511xxxxxB
(V
OUT
detect Nch Open drain)
V
DD
V
OUT
V
DD
V
OUT
Vref
Current Limit
Vref
Current Limit
CE
Delay circuit
GND
V
DET
CE
Delay circuit
Vref
R5511DxxxxC
(V
SENSE
detect Nch Open drain）
V
DD
CE
V
SENSEE
i
L
Vref
d
e
it
m
V
OUT
Current Limit
u
d
o
r
P
Vref
t
c
GND
V
DET
R5511DxxxxD
（V
SENSE
detect CMOS Output）
V
DD
V
OUT
Vref
Current Limit
GND
V
DET
CE
Delay circuit
GND
Delay circuit
V
SENSE
V
DET
Vref
Vref
2
＊R5511D
(SON-6) and R5511H (SOT-89-5) are the discontinued product. As of March in 2015.
R5511x
SELECTION GUIDE
The output voltage setting code number, hysteresis, output delay time, the detecting target, output type can be
selected at the user’s request.
Product Name
R5511Dxxx$∗−TR-FE
R5511Nxxx$#-TR-FE
R5511Hxxx$#-T1-FE
Package
SON-6
SOT-23-5
SOT-89-5
Quantity per Reel
3,000pcs
3,000pcs
1,000pcs
Pb Free
○
○
○
Halogen Free
○
○
○
xxx : Serial number code of output voltage and detector threshold setting, with/without hysteresis
$: Designation of output delay time
(A) 1ms
(B) 20ms
(C) 60ms
(D) 240ms
∗
: Designation of the detecting target and output type
(C) V
SENSE
detect Nch Open drain
(D) V
SENSE
detect CMOS Output
#:
Designation of the detecting target and output type
(A) V
IN
detect Nch Open drain
(B) V
OUT
detect Nch Open drain
∗With
Hysteresis / No delay time version can be designated.
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3
＊R5511D
(SON-6) and R5511H (SOT-89-5) are the discontinued product. As of March in 2015.
R5511x
PIN CONFIGURATION
SOT-23-5
SOT-89-5
5
4
6
5
4
SON-6
Top View
Bottom View
4
5
6
5
4
∗
(mark side)
1
2
3
3
2
1
1
2
3
1
2
3
PIN DESCRIPTIONS
•
SON-6
Pin No
1
2
3
4
5
6
Symbol
CE
GND
V
OUT
V
DD
V
SENSE
V
DET
Chip Enable Pin
Ground Pin
Voltage Regulator Output Pin
Input and SENSE Pin of Voltage Detector
SENSE Pin
∗)
Tab suspension leads are GND level. (They are connected to the reverse side of this IC.)
The tab suspension leads should be open and do not connect to other wires or land patterns.
•
SOT-23-5
1
2
3
4
5
Pin No
i
L
d
e
it
m
Symbol
CE
GND
V
DET
V
DD
V
OUT
Ground Pin
Symbol
V
DET
GND
CE
V
OUT
V
DD
Ground Pin
Voltage Detector Output Pin (Detect"L", Reset"H")
u
d
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P
Pin Description
Pin Description
t
c
Chip Enable Pin
Voltage Regulator Output Pin (Detect"L", Reset"H")
Input and SENSE Pin of Voltage Detector
Voltage Detector Output Pin
•
SOT-89-5
Pin No
1
2
3
4
5
Pin Description
Voltage Detector Output Pin (Detect"L", Reset"H")
Chip Enable Pin
Voltage Regulator Output Pin
Input and SENSE Pin of Voltage Detector
4
＊R5511D
(SON-6) and R5511H (SOT-89-5) are the discontinued product. As of March in 2015.
R5511x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
SENSE
V
DET
V
OUT
I
OUT
Input Voltage
Input Voltage (CE Input Pin)
Input Voltage (SENSE Pin)
VD Output Voltage (CMOS Output)
VD Output Voltage (Nch Open Drain)
Output Voltage
Output Current
Power Dissipation (SON-6) *
P
D
Power Dissipation (SOT-23-5) *
Power Dissipation (SOT-89-5) *
T
opt
T
stg
Operating Temperature
Storage Temperature
Item
Rating
6.5
6.5
6.5
−0.3
to V
IN
+
0.3
−0.3
to 6.5
−0.3
to V
IN
+
0.3
400
500
420
Unit
V
V
V
V
V
mA
∗)
For Power Dissipation, please refer to PACKAGE INFORMATION.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the device
in the field.
The functional operation at or over these absolute maximum ratings is not assured.
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor devices may receive serious damage when they continue
to operate over the recommended operating conditions.
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RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
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−40
to +85
−55
to +125
900
t
c
mW
°C
°C
5
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